This story keeps coming back to one central question: what makes a marriage real? Is it the contract, the physical intimacy, the emotional bond, or something else entirely? And the author keeps flipping the answer on its head.
The most powerful symbolic moment is probably the water scene. Shen Jiaojiao asks for water while drunk, Xie Yanqing pours it, helps her drink, and then he himself downs the remaining water while his Adam's apple bobs and a droplet slides down into his bathrobe. Water as a symbol of thirst, of desire, of something needed to survive — and he's literally consuming what she couldn't finish. It's subtle but loaded.
Then there's the hair. Shen Jiaojiao is "particular about cleanliness" and Xie Yanqing washes and dries her hair after she lashes out at him. Hair in literature has always been symbolic — of intimacy, of vulnerability, of care. The fact that he does this tender task for her, that he "loved her even more" for her temper, suggests that he's fallen for the REAL her, not the polished performance she's been giving.
The contract itself is the biggest symbol in the story. Two years of pretending, of separate rooms, of no real affection — and yet when the contract is threatened with dissolution, Xie Yanqing's reaction is possessive and desperate. The irony is that the contract was supposed to be empty, but it became the vessel for something real. And now Shen Jiaojiao faces the ultimate contradiction: she's supposed to be the villainess who destroys this marriage, but she's the one who actually wants to save it.
Little Black Ball's panic about the plot deviation is almost meta-commentary on the nature of fate versus free will. The system wants a predetermined story, but human emotion refuses to follow the script. That tension between destiny and choice is the philosophical heart of this whole narrative.